/// <summary>
/// The internals for setProperty() and related calls, used after the node is
/// found or created.
/// </summary>
/// <param name="node">the newly created node</param>
/// <param name="value">the node value, can be <code>null</code></param>
/// <param name="newOptions">options for the new node, must not be <code>null</code>.
/// </param>
/// <param name="deleteExisting">flag if the existing value is to be overwritten</param>
/// <exception cref="iText.Kernel.XMP.XMPException">thrown if options and value do not correspond</exception>
internal virtual void SetNode(XMPNode node, Object value, PropertyOptions newOptions
, bool deleteExisting)
{
if (deleteExisting)
{
node.Clear();
}
// its checked by setOptions(), if the merged result is a valid options set
node.GetOptions().MergeWith(newOptions);
if (!node.GetOptions().IsCompositeProperty())
{
// This is setting the value of a leaf node.
XMPNodeUtils.SetNodeValue(node, value);
}
else
{
if (value != null && value.ToString().Length > 0)
{
throw new XMPException("Composite nodes can't have values", XMPError.BADXPATH);
}
node.RemoveChildren();
}
}